What is "braised pork with preserved vegetables," and how is it typically prepared?

Braised pork with preserved vegetables, also known as “hong shao rou” (braised pork belly) with “suan cai” (pickled mustard greens), is a traditional Chinese dish that features tender pork belly braised with preserved vegetables. The pork is usually cut into chunks and braised slowly in a mixture of soy sauce, sugar, rice wine, and various spices until it becomes tender and flavorful. The preserved vegetables add a tangy contrast to the rich, savory pork. This dish is commonly served with steamed rice and is appreciated for its complex flavors and melt-in-your-mouth texture.